Green Tea with Pineapple and Grapefruit Flavours. Doing good. With your support, Twinings helps provide access to clean water for villages across Darjeeling, helps improve mother and baby Yunnan and helps improve health and nutrition in tea communities in Assam. To learn more about these projects while you finish your cup, head to twinings.co.uk. Ethical Tea Partnership. Twinings is a founding member of the Ethical Tea Partnerships.